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From "Knut Anders Hatlen (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5452) Possible NPE in NsTest.printException()
Date Mon, 10 Oct 2011 09:10:29 GMT
Possible NPE in NsTest.printException()
---------------------------------------

                 Key: DERBY-5452
                 URL: https://issues.apache.org/jira/browse/DERBY-5452
             Project: Derby
          Issue Type: Bug
          Components: Test
    Affects Versions: 10.9.0.0
            Reporter: Knut Anders Hatlen
            Assignee: Knut Anders Hatlen
            Priority: Minor


NsTest.printException() contains the following piece of code:

		if (e.getMessage().equals(null)) {
			System.out.println("NULL error message detected");
			System.out.println("Here is the NULL exection - " + e.toString());
			System.out.println("Stack trace of the NULL exception - ");
			e.printStackTrace(System.out);
		}

It's supposed to detect if e.getMessage() returns null. However, if it does return null, calling
equals() on the return value will result in a NullPointerException.

The condition should be changed to (e.getMessage() == null).

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